Solve for x
x=-1
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\frac{9-x}{2}-5+x=x
Divide each term of 2x-10 by 2 to get -5+x.
\frac{9}{2}-\frac{1}{2}x-5+x=x
Divide each term of 9-x by 2 to get \frac{9}{2}-\frac{1}{2}x.
\frac{9}{2}-\frac{1}{2}x-\frac{10}{2}+x=x
Convert 5 to fraction \frac{10}{2}.
\frac{9-10}{2}-\frac{1}{2}x+x=x
Since \frac{9}{2} and \frac{10}{2} have the same denominator, subtract them by subtracting their numerators.
-\frac{1}{2}-\frac{1}{2}x+x=x
Subtract 10 from 9 to get -1.
-\frac{1}{2}+\frac{1}{2}x=x
Combine -\frac{1}{2}x and x to get \frac{1}{2}x.
-\frac{1}{2}+\frac{1}{2}x-x=0
Subtract x from both sides.
-\frac{1}{2}-\frac{1}{2}x=0
Combine \frac{1}{2}x and -x to get -\frac{1}{2}x.
-\frac{1}{2}x=\frac{1}{2}
Add \frac{1}{2} to both sides. Anything plus zero gives itself.
x=\frac{1}{2}\left(-2\right)
Multiply both sides by -2, the reciprocal of -\frac{1}{2}.
x=\frac{-2}{2}
Multiply \frac{1}{2} and -2 to get \frac{-2}{2}.
x=-1
Divide -2 by 2 to get -1.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}